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FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
The left-hand side of figure 6 shows the position
of the neutral terminal (N) on the power cord plug.
Also see figure 15, page 23.
If there is continuity, go to step 6.
If there is no continuity, disconnect the white
wire of the harness from the power cord at the
location illustrated in figure 5, page 13. Test the
continuity of the power cord neutral wire as
illustrated in figure 6. If an open circuit is found,
replace the power cord. Otherwise, go to step 6.
N
Neu
L1
G
Masse
Power Cord Plug
Figure 6. Power cord terminals, gas dryer.
6. In a similar way, check the continuity between
the L1 terminal of the plug and P9-2 (black wire)
on the control board.
If there is continuity, go to step 8.
If there is no continuity, check the continuity of
the power cord in a similar way to that illustrated
in figure 6, but for power cord's L1 wire.
If an open circuit is found, replace the power
cord. Otherwise, go to step 7.
7. Replace the main harness.
8. Visually check that the P5 connector is inserted
all the way into the machine control electronics.
9. Visually check that the user interface and housing
assembly is properly inserted into the front console.
10. If both visual checks pass, replace the
user interface and housing assembly.
11. Reassemble all parts and panels.
12. Plug in dryer or reconnect power.
13. Activate the Service Diagnostic mode per
procedure on page 2. Then activate the User
Interface/Control System test and verify the repair
by completing the Buttons and Indicators test per
procedures on page 5.
14. If indicators still do not light, the machine
control electronics has failed:
Unplug dryer or disconnect power.
Replace the machine control electronics.
Reassemble all parts and panels.
Plug in dryer or reconnect power.
Activate the Service Diagnostic mode per
procedure on page 2. Then activate the User
Interface/Control System test and verify the repair
L1
COM
N
Neu
G
Masse
by completing the Buttons and Indicators test per
procedures on page 5.
TEST #2 Motor Circuit
This test will check the wiring to the motor and
the motor itself. The following items are part of
this motor system:
Part of Motor System
Harness/connection
Thermal fuse
Belt/belt switch
Drive motor
Centrifugal switch
Door switch
Machine control
electronics. See ESD
information, page 1.
1. Unplug dryer or disconnect power.
2. Access the machine control electronics and
measure the resistance across P8-4 and P9-1.
See Accessing & Removing the Electronic
Assemblies, page 21.
If resistance across P8-4 and P9-1 is in the range
of 1 to 6 , replace the machine control electronics.
Otherwise, go to step 3.
3. Check the wiring and components in the path
between these measurement points by referring
to the appropriate wiring diagram (gas or electric),
pages 25–32.
ELECTRIC DRYER ONLY: Check the thermal
fuse. See TEST #3b, page 18.
ALL DRYERS: Continue with step 4 below to test
the remaining components in the motor circuit.
4. Check the belt switch and drive motor. Access
the belt switch and drive motor by removing the
back panel. Slowly remove the drum belt from the
spring-loaded belt switch pulley, gently letting the
belt switch pulley down. See figure 7.
Belt Switch Pulley
Drum
Belt
Figure 7. Slowly remove drum belt.
PAGE 14
Electric
Gas
Dryer
Dryer
no
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